Section 1.1: Frame Relay Configuration


Q: Are the PVCs on the same subnet or do you want them on separate subnets?

A: Look at Figure 2-10; this contains all relevant IP address information.

Q: Do you want me to add 10 to my DLCI numbers under my interface configuration?

A: No, you are required to add 10 to your DLCI numbers to gain a number for your sub-interfaces.

Q: If I keep Layer 2 information only on the Frame Relay subinterfaces, how do I gain Layer 3 connectivity.

A: A method exists of providing Layer 3 information elsewhere on the router.

Q: If I put Layer 3 on elsewhere, how do I make this connection secure?

A: After you have discovered how to provide Layer 3 connectivity, it will become apparent how you would then make this secure.

Q: Is it adequate if I make a tunnel and then run IPsec over it?

A: You have not been provided sufficient information to run IPsec.

Q: Can I use a Virtual Template for the Layer 3 portion of the question?

A: Yes.

Q: If I run PPP on the PVC, can I then put CHAP over this; does this make the Frame Relay secure?

A: Yes.

Section 1.2: 3550 LAN Switch Configuration

Q: Do you want me to configure trunking for the Cisco IP phones?

A: Yes.

Q: Should I configure the data VLAN over and above the Aux VLAN?

A: If this answers the question.

Q: Do both Cisco IP phones support trunking?

A: You need to research this.

Q: For the OEM 10BASE-T phone, is it acceptable to use 10 Mbps and half duplex?

A: Yes.

Q: Do you want me to actually configure an interface VLAN50 on the switch and is this sufficient to ensure the phones could operate with CallManager?

A: Yes, you will need to configure VLAN50 on the switch and assign an address to it within the range supplied for VLAN50. You will find you require further configuration on VLAN50 for the IP phones to contact CallManager.

Q: Will the phones just send unicast traffic directly to the CallManager on 172.16.0.10?

A: Some phones may; however, the Cisco IP telephones are designed to be just plugged into a network without any previous configuration. For this to function correctly, they require the capability to be assigned with a dynamic IP address.

Q: So do you want me to set up DHCP on the switch to assign addresses within network 10.70.70.0/24?

A: No, CallManager incorporates the DHCP scope and tftp functions to download configuration files to Cisco IP telephones.

Q: So just set up a DHCP relay on VLAN50 pointing to CallManager on 172.16.0.10?

A: Yes.

Q: Can I use a default gateway for the switch?

A: Yes.

Q: Can I use R1 or R6 as my default gateway?

A: Yes, use whichever you choose but ensure full visibility from your network.

Section 1.3: ATM Configuration

Q: What kind of interface type do you want on R1 and R6?

A: The question states that the configuration should be completed under the physical interfaces.

Q: If I do not use protocol ip under my ATM interfaces will this stop me from communicating with the remote router?

A: Experiment and you will find out.

Q: If I don't use broadcast under my ATM interfaces will this stop my IGPs from working?

A: You might need to address this issue during IGP configuration.

Section 2.1: EIGRP

Q: Will my loopback interface be advertised out into EIGRP, by default anyway.

A: This depends on how you configure your EIGRP.

Q: If I inject a summary 10/8 into EIGRP will this create a static route into null 0; is this acceptable as the lab states no static routes?

A: The question specifically requests a summary route so in this case, it is acceptable.

Q: If I inject a 0/0 into EIGRP this must be a static route. Is this acceptable?

A: Do not inject a static route; find another way to accomplish this.

Q: The question states that no host routes should be visible in the network, but I have one after configuring my network. Is this acceptable?

A: No, find a way to remove the host route but maintain connectivity to the host.

Section 2.2: OSPF

Q: I cannot get an adjacency across my ATM as this is NBMA. How can I form a neighbor if I cannot adjust what network it is under OSPF?

A: This is a back-to-basics type question; what mechanisms are available to you for NBMA network types?

Q: Can I advertise the loopback address of 10.200.200.1/29 into another OSPF process and then redistribute this into OSPF 30?

A: The question states that you must not add this subnet into any routing protocol on R5.

Q: If I can't add the subnet onto R5, can I add it onto R6?

A: If, by doing this, R5 responds to pings from another router for the 10.200.200.0/29 subnet then yes.

Q: I've added the subnet onto R6 and my whole network now has reach ability of 10.200.200.0/29 but only to R6; does this count for any partial marks?

A: You need to answer the question exactly to score marks.

Q: Is it acceptable to policy route traffic destined for R5 from R6?

A: Yes, the question does state that you may use policy routing.

Q: If I set up an area range within area 2, will this be sufficient?

A: No, back to basics again; think about the different types of areas that are available to you.

Q: My loopback interfaces have come out as host routes; is this acceptable?

A: No, use an OSPF feature to ensure they are advertised with the correct mask.

Q: Do you want me to summarize the networks to achieve the correct mask?

A: No, there is a much easier method available to you.

Q: Can I modify my router ID as I have noticed that I need to add further loopbacks, which could affect my OSPF?

A: This is your choice.

Section 2.3: Redistribution

Q: Can I just redistribute EIGRP AS30 into OSPF on R1?

A: You can but you may then have difficulty in answering the following questions.

Q: Can I use a prefix-list to differentiate my networks?

A: This is not the desired method, and you have a number of EIGRP and OSPF subnets with the same mask value.

Q: EIGRP routes coming into OSPF will be shown as external routes; can I use a route-map to redistribute these routes only into EIGRP20?

A: You have been told in the question not to match on external routes.

Q: If I cannot match on external routes, can I deny internal routes on a route map and then allow all other routes in?

A: This still matches external routes via inverse logic, so no.

Q: Can I use the route tagging feature?

A: Yes.




CCIE Routing and Switching Practice Labs
CCIE Routing and Switching Practice Labs
ISBN: 1587051478
EAN: 2147483647
Year: 2006
Pages: 268

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net